CN105918230B - The artificial sinking device of trend pump type - Google Patents
The artificial sinking device of trend pump type Download PDFInfo
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- CN105918230B CN105918230B CN201610266861.3A CN201610266861A CN105918230B CN 105918230 B CN105918230 B CN 105918230B CN 201610266861 A CN201610266861 A CN 201610266861A CN 105918230 B CN105918230 B CN 105918230B
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- sinking
- venturi
- standpipe
- sensor
- pump type
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229930002875 chlorophyll Natural products 0.000 claims description 6
- 235000019804 chlorophyll Nutrition 0.000 claims description 6
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000013535 sea water Substances 0.000 description 14
- 206010021143 Hypoxia Diseases 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 239000003653 coastal water Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007954 hypoxia Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005276 aerator Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006735 deficit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000090 biomarker Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of artificial sinking devices of trend pump type, including choked flow pressure inlet, flow catch, sinking standpipe, empennage, Venturi, pedestal, cylindrical shape reinforced frame；Wherein, the upper end of sinking standpipe is welded on the circular hole in the middle part of tube body；The middle part of choked flow pressure inlet is hinged flow catch；It is welded with empennage on the side wall of sinking standpipe；The axis co-planar of plane and choked flow pressure inlet where empennage；Venturi upper end is provided with through-hole；Cylindrical shape reinforced frame is fixedly mounted on the through hole of Venturi upper end；The lower end of sinking standpipe is removably mounted on the upper end through-hole of Venturi；Venturi is removably mounted on pedestal, and pedestal is used to fix whole device in water.The artificial sinking device of trend pump type of the present invention does not have any electromechanical component, simple in structure, cheap；Reliable operation, dispensing are easy to maintain；Can all weather operations, can lay on a large scale, it is efficient.
Description
Technical field
The present invention relates to improvement coastal waters bottom anoxic conditions field more particularly to a kind of trend pump type are artificial
Sinking device.
Background technology
Dissolved oxygen (Dissolved Oxygen, DO) is the important indicator of water environment health.The many river mouths in the world and offshore
All there is seasonal hypoxia (hypoxia, DO in marine site<2mg/L, Fig. 1 a) the phenomenon that, by 2009, the global anoxic reported
Area is more than 400 (Fig. 1 b), and the gross area reaches 245000km2.China has wide coastline and numerous estuary bays, together
Sample is faced with severe ocean oxygen deficit problem.Entrance of Changjiang River at present, there is anoxic report in marine site outside the river mouths such as the mouth of the Zhujiang River.In recent years
Data show, Outer Changjiang estuary anoxic marine site (DO<2mg/L) area is more than 20000km2, DO minimums have been less than 1mg/L (Fig. 2),
Frequency, range, duration, the intensity of hypoxemia appearance have the tendency that obviously rising.
There are more anoxic zones for the intensive coastal waters of population activity, have become global great life
State environmental problem.Anoxic will change water body chemical cyclic process, destroy the original ecological balance in the waters, lead to water eutrophication
Change aggravation, harmful heavy metal ions release, and the physiological function, area distribution, structure of community and the biology that influence marine organisms are more
Sample, serious anoxic can lead to the death (Fig. 1 a) of marine organisms.Since the biomass of anoxic loss is about in global range
34.3-73.4 ten thousand tonnes of carbon/years.In anoxic zone, original marine eco-environment is destroyed, may if developing as one pleases
Disastrous effect is broken out, the entire coastal waters ecosystem is caused to collapse.
The approach for improving coastal waters bottom anoxic mainly has two, first, control land source emission, is reduced organic
The production and decomposition of object reduce water body oxygen consumption, but with the continuous aggravation of littoral mankind's activity, in the world most river mouths and offshore
The nutriment input in marine site is possible to continue growing；Second is that by water body vertical exchange and going stratification, promote dissolved oxygen to bottom
The diffusion of water body increases the supplement of bottom water body dissolved oxygen, this approach is possibly through engineering technology hands such as artificial ocean mixing
Duan Shixian.
Artificial ocean mixing is used as a kind of earth engineering method, including artificial upper up-flow and artificial sinking, is in recent years
The research hotspot and advanced subject in Marine Sciences field.Wherein, seabed nutritive salt is promoted to euphotic layer by the former, at the beginning of improving surface layer
Grade productivity promotes marine carbon to converge；The latter is the water body flow caused by manual system in ocean from up to down.In river mouth and
The anoxic zone of immediate offshore area, there may be apparent ecological effects for artificial ocean sinking：1. it injects the oxygen-enriched seawater in surface layer
Break oxygen water body on earth increases aerobic space to alleviate the degree of oxygen deficiency of bottom water body；2. enhancing water body vertically mixes, beat
It is broken/to weaken water body layered structure, to increase conveying of the bottom nutritive salt to euphotic layer, increase primary productivity, improves ocean
Fishing ground ecological environment.In addition, artificial sinking provides the scientific experiment means of regional environment protection and treatment decision-making, help to visit
Study carefully the artificial variation of dissolved oxygen spring layer, the suction of water/sediment interface chemical process, heavy metal in bed mud declined under flow disturbance
Attached state, microbiologic population's change, compound and the variation of corresponding biomarker etc. important scientific problems.Therefore, external
Have the tendency that continuing to increase to the research and application that manually decline Flow Technique, accelerate.
ECS companies of the U.S. (Ecosystem Consulting Service, Inc.) have developed electronic paddle aerator,
Sinking device, jet aerator and aeration-type oxygen-increasing machine.These systems can readily obtain the continental rise energy, effectively real
Existing lake and reservoir go stratification and water oxygenation function；The large-scale density of sea water flow generating apparatus that Tokyo Univ Japan develops
(Density Current Generator, DCG) is energized using vapour/diesel-driven generator, artificial decline is formed simultaneously with water pump
Stream and artificial upper up-flow are discharged after mixing table, bottom seawater in thermocline.The device has tested successfully, and applied to Japan
Gokasyo estuarine environments improve.Swedish government is established in the fyords By Fjord (mean depth 51m, water bottom long term hypoxia)
Surface seawater, is pumped into the bottom anoxic water body of 35 meters of depth using wind-force and electric power by large scale ecological engineering.2 years realities
Testing result of study, to show that single sinking device can be such that the DO contents of nearly seven square kilometres of anoxic water bodys increase to from 0mg/L flat
Equal 3.7mg/L, marine site NH4, P, H2S content significantly decline, and bottom aqueous bio abundance is obviously improved.
The studies above shows that manually declining Flow Technique is expected to become a kind of effective ways for alleviating bottom seawater oxygen deficit problem.
However, its Lu Yuan energy-provision way of the device of ECS companies of the U.S. is poorly suitable for marine site work；Japanese DCG devices are for offshore half
Enclosed bay is researched and developed, and continental rise is needed to energize；Sweden's wind-power sinking device is suitable for the Baltic Sea, because of this marine site wind energy money
Source is abundant.Both are equipped there are electromechanical structure complexity, construction maintenance cost is of high cost, on-site maintenance is difficult, is difficult to realize grow
The defects of phase automatic running, to large-scale engineering application relatively difficult to achieve.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of artificial sinking device of trend pump type, and the device is from mechanism
On can upper lower nozzle simultaneously capture rise, the marine tidal-current energy on ebb tide direction, convert marine tidal-current energy to pressure difference energy, to by surface layer richness
Oxygen Seawater inhalation bottom increases the dissolved oxygen amount of bottom water body.It is introduced by the artificial sinking Innovation Theory of trend pump type, solution
Certainly ocean energy self-sufficiency problem reduces cost, improves engineering feasibility.Trend pump type manually declines Flow Technique and is expected to breaks through foreign people
The predicament that work sinking construction investment is huge, cost performance is low, can low cost construction, it is economic and environment-friendly, be expected in Outer Changjiang estuary anoxic
Promote demonstration in area.
The technical proposal for solving the technical problem of the invention is as follows：A kind of artificial sinking device of trend pump type, packet
Include choked flow pressure inlet, flow catch, sinking standpipe, empennage, Venturi, pedestal, cylindrical shape reinforced frame；Wherein, described
Choked flow pressure inlet is the tube body that both ends have horn shape, and circular hole is provided in the middle part of tube body；It welds the upper end of the sinking standpipe
On the circular hole in the middle part of tube body；The middle part of the choked flow pressure inlet is hinged flow catch；When flow flows into choked flow supercharging from side
Guan Shi, flow catch shift other side onto by flow, to block the mouth of the other end；It is welded on the side wall of the sinking standpipe
There is empennage；The axis co-planar of plane and choked flow pressure inlet where the empennage；The Venturi upper end is provided with through-hole；It is described
Cylindrical shape reinforced frame is fixedly mounted on the through hole of Venturi upper end；The lower end of the sinking standpipe is removably installed
On the upper end through-hole of Venturi；The Venturi is removably mounted on pedestal, and the pedestal is used for will be whole
A device is fixed in water.
Further, the Venturi includes lower protruding block, connecting pole and upper protruding block；The lower protruding block and upper protruding block are logical
Cross connecting pole connection；The lower male structure of the lower protruding block and the convex configuration of upper protruding block form Venturi tube structure；The lower protruding block
On be provided with through-hole, the lower end of sinking standpipe is removably mounted on the through-hole of lower protruding block.
Further, further include be mounted on sinking standpipe in temperature sensor, dissolved oxygen sensor, PH sensor,
Salinity sensor and chlorophyll sensor.
Further, the temperature sensor, dissolved oxygen sensor, PH sensor, salinity sensor and chlorophyll sensing
Device is self-tolerant sensor.
Further, the lower protruding block, upper protruding block, pedestal are poured by mixed mud.
Further, the choked flow pressure inlet, connecting pole, cylindrical shape reinforced frame material be reinforcing bar.
Further, the choked flow pressure inlet, flow catch, sinking standpipe are all made of PVC pipeline material.
Compared with prior art, the beneficial effects of the invention are as follows：The artificial sinking device of trend pump type does not have any machine
Electrical components, it is simple in structure, cheap；Reliable operation, dispensing are easy to maintain；Can all weather operations, can lay on a large scale, imitate
Rate is high.
Description of the drawings
Fig. 1 is global anoxic zone distribution and influence diagram, wherein (a) is influence diagram of the anoxic to marine organisms；(b) it is the whole world
Anoxic distribution map；
Fig. 2 is entrance of Changjiang River anoxic zone DO situation maps, wherein (a) is Outer Changjiang estuary bottom water body DO distribution maps；(b) it is the Changjiang river
The DO minimums in different months outside mouthful；
Fig. 3 is the system structure three-view diagram of the present invention；
Fig. 4 is the system structure partial cutaway view of the present invention；
Fig. 5 is the reinforced concrete substrate figure of the present invention；
Fig. 6 is the sectional view of choked flow supercharging device of the present invention；
Fig. 7 is venturi flow-increasing device enlarged drawing of the present invention；
In figure, choked flow pressure inlet 1, flow catch 2, sinking standpipe 3, empennage 4, Venturi 5, pedestal 6, cylindrical shape
Reinforced frame 7, lower protruding block 51, connecting pole 52, upper protruding block 53.
Specific implementation
The present invention is described further with reference to the accompanying drawings and examples.
The present invention is based on bernoulli principles, i.e., then pressure reduces for fluid flow rate increase, otherwise flow velocity reduces then pressure and increases.
Therefore, using table, bottom ocean current current difference, the pressure difference between sinking standpipe upper and lower port can be generated, causes seawater from upper
Vertical movement under and forms trend pump.
As shown in fig. 3 to 7, the present invention includes：Choked flow pressure inlet 1, flow catch 2, sinking standpipe 3, empennage 4, venturi
Device 5, pedestal 6, cylindrical shape reinforced frame 7；Wherein, the choked flow pressure inlet 1 is the tube body that both ends have horn shape, in tube body
Portion is provided with circular hole；The upper end of the sinking standpipe 3 is welded on the circular hole in the middle part of tube body；The middle part of the choked flow pressure inlet 1
Hinged flow catch 2；When flow flows into choked flow pressure inlet 1 from side, flow catch 2 shifts other side onto by flow, to
The mouth of the other end is blocked, such flow is just more walked downward, and efficiency is improved；It is welded on the side wall of the sinking standpipe 3
Empennage 4；The axis co-planar of the empennage 4 place plane and choked flow pressure inlet 1；The Venturi upper end is provided with through-hole；Institute
State the through hole that cylindrical shape reinforced frame 7 is fixedly mounted on Venturi upper end；The lower end of the sinking standpipe 3 is removably
On the upper end through-hole of Venturi 5；The Venturi 5 is removably mounted on pedestal 6, the pedestal 6
For whole device to be fixed in water.
As shown in fig. 7, the Venturi 5 includes lower protruding block 51, connecting pole 52 and upper protruding block 53；The lower protruding block 51
It is connected by connecting pole 52 with upper protruding block 53；The lower male structure of the lower protruding block 51 and the convex configuration of upper protruding block 53 form literary mound
In structure；Through-hole is provided on the lower protruding block 51, the lower end of sinking standpipe 3 is removably mounted on the through-hole of lower protruding block 51.
The sinking standpipe 3 can be with mounting temperature sensor, dissolved oxygen sensor, PH sensor, salinity sensor
With chlorophyll sensor；These sensors are self-tolerant sensor.
The product of model MF 39 may be used in the dissolved oxygen sensor, but not limited to this；PH sensor may be used
The product of model WQ201, but not limited to this；The product of model RHS1010 may be used in temperature sensor, but is not limited to
This；The product of model WATER-SLT-VN may be used in salinity sensor, but not limited to this；Chlorophyll sensor may be used
The product of model CHL-30, but not limited to this.
The lower protruding block 51, upper protruding block 53, pedestal 6 are poured by mixed mud.The choked flow pressure inlet 1, connecting pole 52,
The material of cylindrical shape reinforced frame 7 is reinforcing bar.The choked flow pressure inlet 1, flow catch 2, sinking standpipe 3 are all made of high-strength light
Spend rigid PVC pipeline material.
The course of work of the present invention is as follows：
Device is placed into anoxic marine site with marine loop wheel machine, whole device is fixed on anoxic marine site by pedestal 6.When rising
When tide, ebb tide, the flow in anoxic zone marine site can flow, and flow has certain speed, the choked flow pressure inlet 1 above device
Nozzle direction is consistent with the direction that seawater flows, and seawater enters sinking standpipe 3 by the horn-like nozzle of choked flow pressure inlet 1,
Seawater enters choked flow pressure inlet 1 and pushes to its internal flow catch 2 to block other side nozzle, and seawater is made not pass through choked flow
Pressure inlet 1 flows out, to the greatest extent and may more than enter sinking standpipe 3.Choked flow pressure inlet 1 passes through the surface layer trend water of upper port
Flat speed is reduced to zero, and a downward hydraulic pressure is generated in pipe.Bottom trend passes through Venturi, the speed meeting of flow
The bottom trend for increasing, while accelerating by Venturi forms a negative pressure in 3 lower port of sinking standpipe.Work as upper and lower side
The pressure difference of mouth can overcome density head, seawater mobilization dynamic and pipe internal friction, you can it is top-down to generate seawater in pipe
Flowing, forms artificial sinking.The present invention can capture simultaneously rise, the marine tidal-current energy on ebb tide direction, convert marine tidal-current energy to pressure
Poor energy, to by the oxygen-enriched Seawater inhalation bottom in surface layer, increase the dissolved oxygen amount of bottom water body.
Claims (7)
1. a kind of artificial sinking device of trend pump type, which is characterized in that including choked flow pressure inlet（1）, flow catch（2）, under
Drop stream standpipe（3）, empennage（4）, Venturi（5）, pedestal（6）, cylindrical shape reinforced frame（7）；Wherein, the choked flow pressure inlet
（1）There is the tube body of horn shape for both ends, circular hole is provided in the middle part of tube body；The sinking standpipe（3）Upper end be welded on pipe
On circular hole in the middle part of body；The choked flow pressure inlet（1）Middle part be hinged flow catch（2）；The sinking standpipe（3）Side wall
On be welded with empennage（4）；The empennage（4）Place plane and choked flow pressure inlet（1）Axis co-planar；On the Venturi
End is provided with through-hole；The cylindrical shape reinforced frame（7）It is fixedly mounted on the through hole of Venturi upper end；The sinking standpipe
（3）Lower end be removably mounted on Venturi（5）Upper end through-hole on；The Venturi（5）Removably pacify
Mounted in pedestal（6）On, the pedestal（6）For whole device to be fixed in water.
2. the artificial sinking device of trend pump type according to claim 1, which is characterized in that the Venturi（5）
Including lower protruding block（51）, connecting pole（52）And upper protruding block（53）；The lower protruding block（51）And upper protruding block（53）Pass through connecting pole
（52）Connection；The lower protruding block（51）Lower male structure and upper protruding block（53）Convex configuration formed Venturi tube structure；Under described
Convex block（51）On be provided with through-hole, sinking standpipe（3）Lower end be removably mounted on lower protruding block（51）Through-hole.
3. the artificial sinking device of trend pump type according to claim 1, which is characterized in that further include being mounted on sinking
Standpipe（3）Interior temperature sensor, dissolved oxygen sensor, PH sensor, salinity sensor and chlorophyll sensor.
4. the artificial sinking device of trend pump type according to claim 3, which is characterized in that the temperature sensor, molten
It is self-tolerant sensor to solve lambda sensor, PH sensor, salinity sensor and chlorophyll sensor.
5. the artificial sinking device of trend pump type according to claim 2, which is characterized in that the lower protruding block（51）, on
Convex block（53）, pedestal（6）It is poured by mixed mud.
6. the artificial sinking device of trend pump type according to claim 2, which is characterized in that the choked flow pressure inlet（1）、
Connecting pole（52）, cylindrical shape reinforced frame（7）Material be reinforcing bar.
7. the artificial sinking device of trend pump type according to claim 1, which is characterized in that the choked flow pressure inlet（1）、
Flow catch（2）, sinking standpipe（3）It is all made of PVC pipeline material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266861.3A CN105918230B (en) | 2016-04-26 | 2016-04-26 | The artificial sinking device of trend pump type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266861.3A CN105918230B (en) | 2016-04-26 | 2016-04-26 | The artificial sinking device of trend pump type |
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| Publication Number | Publication Date |
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| CN105918230A CN105918230A (en) | 2016-09-07 |
| CN105918230B true CN105918230B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610266861.3A Expired - Fee Related CN105918230B (en) | 2016-04-26 | 2016-04-26 | The artificial sinking device of trend pump type |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109197744B (en) * | 2018-10-23 | 2021-01-26 | 浙江大学 | Tumbler type culture area tidal current pump oxygenation device |
| CN109952989B (en) * | 2019-03-04 | 2021-03-09 | 浙江大学 | Tidal-difference type artificial down-flow device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201690904U (en) * | 2010-02-05 | 2011-01-05 | 侯旭光 | Dissolved oxygen device for aquaculture |
| CN202425464U (en) * | 2012-01-17 | 2012-09-12 | 张惠星 | Efficient and energy saving underwater spewing type aerator |
| KR101343099B1 (en) * | 2013-07-03 | 2013-12-20 | 옹 진 군 | Sea-cucumber habitat reef with multi-function |
| CN204499142U (en) * | 2014-12-30 | 2015-07-29 | 天津泓柏科技有限公司 | Quiet submersible makes stream aerator |
| CN105494183B (en) * | 2015-12-04 | 2019-03-01 | 华东师范大学 | A kind of enhancing marine carbon converges method and artificial flowing device |
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